Binding a textbox to a detailsview in asp.net 2.0

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Hi, Is it possible to bind a text box to the results of a detailsview
record. This is for a university project using visual web developer 2005
express beta. Unfortunatly this is a new eniroment to me and i can't find any
relevant resources on it. The code i have been trying to use is:

</aspetailsView>
<asp:TextBox ID="TextBox1" Runat="server"
Text='<%# ObjectDataSource1("StockCode")%>' >

</asp:TextBox>

I guess it is the objectdatasource1 bit that is messing up. any ideas?
thanks